95 eclipse gst 2.0 smoking out exhaust, smells of oil bad, has oil in 2 cylinders spark plug holes but plugs are fine, runs fine does not sputter smoking getting worse as time goes on

Ordinarily, rough running with a raw gas smell indicates a fuel pressure regulator or fuel injector problem, but that usually produces grey or black smoke. The white smoke may be steam, which is more serious.

If the exhaust also smells somewhat like maple syrup (that's what burned engine coolant smells like unless you are running water without antifreeze), or your coolant level is going down rapidly, you probably have a bad head gasket, cracked block or head that is leaking coolant into one or more cylinders. That's what would produce a large amount of steam, and the uneven power production is what makes the engine vibrate strongly. The mixture control system is being all messed up because the coolant in the cylinder is preventing proper combustion - on the one hand the knock vibration sensor is telling the computer that the engine is running too lean, but on the other hand the oxygen sensor is detecting the rich condition. A readout of the engine computer would be interesting to see.

Run the engine as little as possible until you get this checked out. A coolant leak into a cylinder can cause quite a bit of secondary damage.

You may be able to identify which cylinder has the problem by removing the spark plugs and inspecting them. A wet spark plug is confirmation of my hypothesis. If you have a borescope (video camera on a flexible tube or with a fiber optic bundle with a lens on the end), you can peek inside the cylinder through the spark plug hole. Otherwise, pull the head to see where the coolant leak is.

Hi,

I hope I can help with this. This could mean the engine spark plugs or plug is the issue. Also check the exhaust pipe. White smoke indicates a coolant issue. Check your coolant reservoir. Black smoke indicates a Fuel issue. Blue is an oil issue. Also, speaking of your spark plugs there very well could be a misfire.

the code P303 could be cylinder 3 misfire
P102 the mass air flow sensor which is on the air filter cover. It's an electrical part and is sensor. Please check these and let me know.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/laura_08254539050d64db

no year, ?

try a new spark plug e and then if wires to spark plug , replace that too. and cap and rotor if it has that....?????



then when spark is good, check compression with any $20 gauge.

no year, i give up.

1976 accord? surely ive no clue.



smoke has 3 colors, (my rules not ASE)

1 black fuel (flooding etc) can seem gray but is black .

2: white and lingers., oil burning , bad. news.

3: white and fades fast, is STEAM, like moms tea pot, look next time..

smell white smoke, smells sweet, its toxic antifreeze.

smells like oil dripped on an hot exhaust? that is the smell of oil burning



smoke where, under front of car, or at the end of the tail pipe. ?????????????



how you like my smoke rules, even mom can figure it out.

The most common cause of blue exhaust smoke is oil leaking past engine seals and into the cylinders where it then mixes and burns with the fuel. Oil leaking into the cylinders can cause a rough idle, misfire and fouled spark plugs. So best bet is to have a local repair shop inspect for internal oil leakage.

Dumping to much gas..could be many problems, an some that you mentioned, like a faulty fuel injector..you need to check each one with a noid light, and see how they pulsate, and see how they spray..you can do a compression check on the cylinders to see if there is a leak in the cylinder head..but your main problem maybe, that your piston rings are worn out, and instead of the gas getting ignited in the cylinder, some of it is getting by the piston rings and going down to the oil pan..and you may have oil getting up in the cylinder wall, and that's what is giving you the bluish smoke..So just do a compression check 3 different times, and write down your readings...Check your injectors, to see if one, or more is dumping to much gas...Goodluck

sounds like a head gasket or warped head. go buy a compression teseter. pull the spark plug wires off. remove spark plugs insert teset. turn engine over 3 times for each cylinder. should be within 10-15 of each other. check dipstick look to see if oil is milky.

YOU HAVE A BLOWN HEAD GASKET THAT IS`ALLOWING THE COOLANT TO GET DRAWN INSIDE THE CYLINDERS AND THAT WOULD EXPLAIN THE WHITE SMOKE(STEAM) IT SMELLS LIKE GAS BECAUSE THE SPARK PLUGS ARE WET WITH WATER/COOLANT. HOPE THIS HELPS. SORRY FOR THE BAD NEWS. IT CAN BE FIXED BUT IT WON'T BE CHEAP. BEST OF LUCK.

OK, fast! Check the exhaust for rotten egg smell and pressure. Exhaust should stop immediately when engine is turn ed off

first of all change spark plugs to the standards of the car ,, maybe you have bad spark plugs .. does your car have a white smoke in exhaust ? if so then its something has to be replaced inside 2 and 3 cyclinders thats an advanced failure
if you have no smoke in exhaust check top oil gasket .. when did you change it ?

I can tell about a couple of odors from oils that are quite indicative of the places where they oil is leaking into the exhaust though.

You've got a few internal places where oil can get into the engine and even some can get into the combustion chambers. They have distinctive odors and can really help diagnose the cause or reason for the oil consumption.

First let's start with the "sweet-smells".

This means that the oil have gone through the combustion process along with the engine's fuel (gasoline or diesels too!). It is about the same smell you get whiffing the exhaust on a 2-cycle engine with gas-oil premix.

Places where this CAN happen:

1) Cylinder walls ie; piston rings, worn or broken.
2) PCV system where the oil is sucked into the manifold under vacuum and is entrained into the combustion chamber in the normal air-flow to the engine for combustion.
3) Intake runner-to-head surface gasket(s) where the intake can actually **** oil from the cam tray area or the inner valley between the heads and the intake manifold.
4) Occasionally from changing spark plugs in "well" type plug chambers that let the plug get very close to the head through the head casting. Taking a plug out and letting the collected oil fall into the cylinder is usually a temporary situation, but can scare you when it happens.
5) Cracked head or blown head gasket: this usually has to happen where the head has a high pressure passageway for the oil to travel through the head to get to a cam tower on top of the head.
6) Now - here's something that's gonna get debated, fer sure! ONLY the intake valves can leak past their stem seals and allow oil to travel down the stem onto the combustion process. Remember that I am speaking or "sweet" oil smell here.


Now some of the "not sweet" or bitter oil smell:

1) Exhaust guides or stem seals on the EXHAUST valves ONLY can cause a very acrid smell of nasty, eye watering and cough-inducing stink.
2) CVCC or pre-combustion chambers can also cause this problem. The Honda CVCC engines were notorious for this! The auxiliary valve can leak oil into the pre-chamber and then it opens the valve and dumps the burning mess into the main cylinder head area and the results are a bad BAD stink and lots of white/blue smoke.
3) RARELY...very rarely the exhaust port AFTER the exhaust valve seat can become perforated and allow oil to get into the exhaust stream. It does NOT burn here - rather it just cooks-off with a very bad smell.

So-o-o-o

Acrid oil smell - the oil has NOT gone through the combustion process in the cylinder head but is rather "cooked" into a stinky odor. It may or may not smoke too much too.

Sweet oil-burning smell - oil that has been burned as part of the combustion process in the combustion chamber on one or more or even all cylinders.